Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Income Taxes (Details Textual)

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Note 9 - Income Taxes (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2016
Mar. 31, 2015
Sep. 30, 2015
State and Local Jurisdiction [Member]          
Operating Loss Carryforwards, Valuation Allowance $ 659,000   $ 659,000   $ 659,000
Unrecognized Tax Benefits 0   0    
Income Tax Expense (Benefit) $ 744,000 $ 200,000 $ 1,374,000 $ 773,000  
Effective Income Tax Rate Reconciliation, Percent 34.10% 40.90% 32.70% 36.30%